Measuring rule



June 12, 1928. 1,673,577

- D. I W. M GEE'.

MEASURING RULE Filed Juhe 29, 1926 Patented June 12, 1928.

UNITED STATES PATENT ()FFI DANIEL w. McG-EE, or FORT WORTH, TEXAS, ASSIGNOR TO ARRETT SMITH, or roiaT WORTH, TEXAS. i I Y MEASURING- RULE.

Application filed June 29,1926. Serial No. 119,462.

My invention relates to attachments and devices to operate in conjunction with measuring rules; and the objects of my improvement and invention are- 9 First, to provide an inexpensive and convenient attachment and device which will allow the rule to be converted through the use of said attachment and device into an instrument to designate certain anglesupon a surface, particularly a planesurface; and,

econd to rovide an attachment and do 5 p vice by which a folding measuring rule may 7 be easily and quickly converted into an instrument for determining the location of certain lines and angles upon surfaces; and,

Third, to eliminate the requirement of additional tools and instruments such as squares, mitres, tri-squares, et cetera, by devices, when applied to or used in conjunction with a foldmg measuring rule, becausethrough such attachment and devlce, it 13 made to serve the purpose of other tools and instruments.

I attain these objects by the arrangements, attachments and devices illustrated'in the accompanying drawing, in whicliFigurel is a side view of a folding rule illustrating the device; Figure 2, a view of apart of the attachmentand device; ancl,Figure3, a side view of another ,folding rule fixed and adjusted at a difierent angle from Figure 1.

Similar numerals refer to similar parts throughout the several views.

In all of the drawings 1 representsthe measuring sections of a folding rule; 2- represents a hinge, connecting said sections, consisting of plates pivoted together at their abutting ends and respectively attached to the measuring sections at their free ends; 3 represents spaced notches in the periphery of one of the aforesaid hinged plates; 4 represents a box-like slide around the other plate and attached measuring section and movable thereon, said slide having one of its ends continued so as to fitting snugly form a Fig. 1, 7 denotes a small protruding pin on the face of the measuring section to, act as a stop forthe slide. Referring to Fig- 6 denotes an indentation on the edge of the rule; which" allows the rule to close tightly projecting finger 5. Referring to,

and also limits the path of travel of the boxlilreslide. j i i j By moving the box-like slide 4-, which fits snugly around the faces of the rule, toward the hinge 2, a rigid and stationary device is formed, theprojecting finger 5 of the slide engaging the notches 3; as illustrated in Figures land 3. l/Vhen it is desired tochange the angular relation between the hinged sections of the rule, the slide 4 is pushed in the opposite direction until the finger 5 becomes disengaged from thenotches 3. Various changes in the size and shape as well as modifications maybe made without departing from the spirit of the invention and within the scope of the appended claim.:

I claim: j A rule comprising hinged measuring sections, one of'which has its hinged portion circular in outline and projecting laterally of its edge, and a cutaway portion in the other sect-ion fitting around said circular portion, said cut away portion also having extending therefrom' a slot in the face of said measuring section, said circular portion having notches in its periphery spaced apart, and a box-likesllde littingin said slot in the said slide havingone of the side walls projecting to form a finger to engage in the notches of said circular part for holding the measuring sections in predetermined angular DANIEL 7 w. B IcGEE,

other section and slidable on said section, i 

